Atotech Deutschland Gmbh

Elexso Sortiertechnik Gmbh

Thomas Moritz

Wolfgang Dahms

Heiko Brunner

Josef Gaida

Klaus-Dieter Schulz

Olaf Kurtz

Udo Grieser

Jürgen Barthelmes

Robert Rüther

Akif Özkök

Olanda Grieser, Legal Representative

Christopher Grieser, Legal Representative

Jos P Mallant

Oleg Sprenger

Rainer Schumann

Marta Sainz-Vila

Florence Lagorce-Broc

Harald C Justus

A method for electrodepositing a metal layer from an electrolytic bath is described, wherein the concentrations of at least two components of the electrolytic bath are monitored by carrying out the following steps: (a) a sample is taken from the electrolytic bath; (b) the sample is supplied to a column for solid phase extraction, which contains a solid sorbent material; (c) the column is subjected to a washing procedure with a first eluent, wherein the at least two components remain on the column, and undesired components are eluted from the column; (d) the at least two components are eluted from the column by a second eluent; (e) the concentrations of the at least two components in the eluate obtained in step (d) are determined without separating the components from each other. In this method the use of poly(divinyl benzene-co-N-vinyl pyrrolidone) for solid phase extraction is particularly advantageous.

Electrodeposition method with analysis of the electrolytic bath by solid phase extraction

For the reproducible manufacturing of particularly uniform and brilliant i.e., highly bright copper coatings that are leveled and ductile as well, a copper plating bath is utilized that contains as an additive a mixture of oligomeric phenazinium compounds. The mixture contains at least one phenazinium compound selected from the group comprising compounds containing two monomeric units and compounds containing three monomeric units having the general chemical formulae &#x3c;I&#x3e; and &#x3c;II&#x3e; set forth in the patent claims and in the specification as well as further oligomeric phenazinium compounds. 

Mixture of oligomeric phenazinium compounds and acid bath for electrolytically depositing a copper deposit

The plating bath for the deposition of satin nickel deposits according to the present invention contains at least one quarternary ammonium compound and at least one polyether, the at least one polyether having at least one strongly hydrophobic side chain. As compared to prior art plating baths, this acid plating bath has the advantage that it enables a long period of operation or heating and cooling cycles or filtration cycles, makes it possible to perform the filtration needed for continually operating the bath without using active carbon, requires a lower concentration of nickel than prior art baths to produce the satin gloss finish and has a reduced sensitivity to wetting agents that have been dragged in.

Acid plating bath and method for the electrolytic deposition of satin nickel deposits

The invention relates to an optical sorting system for a color sorting machine. Product is irradiated with visible, infra-red or ultra-violet light by a transmitter. If there is no product in the ray path of the transmission source, all of the light falls onto a residual light receiver. If product is present, on the other hand, the light is partly or wholly scattered back to one or more product signal receivers.

Optical sorting system for a color sorting machine and process

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Berlin, Germany

Thomas Moritz